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PQRS is a cyclic quadrilateral. If angle...

PQRS is a cyclic quadrilateral. If `angle P` is four times the `angle R` and `angle S` is three times the `angle Q` , then the average of `angle Q` and `angle R` is:

A

`45.7^(@)`

B

`81^(@)`

C

`90^(@)`

D

`40.5^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
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